The measuring instruments of the ECO - Messtechnik in Emden
Our speciality is the computing and building of anechoic chambers.In Emden we have an anechoich measuring chamber with the following dimensions: L 12m x B 8m x 4,5m
In this measuring chamber all EMV-measurements are accomplished.
Measuring Chamber
In our measuring chamber all EMV-measurements are accomplished:1. Breakdown sending
a) led interference energy
b) radiated interference energy
2. Noise immunity
a) against led variable disturbances
b) against radiated variable disturbances
That means, we measure all arising measurements of the breakdown sending and noise immunity in Emden for foreign customers. The electromagnetic breakdown sending (SA) is considered as active component, a measure for the breakdown ability of an electrical mechanism. Electromagnetic noise immunity (SF) shows the ability of an electrical mechanism as passive component, to bear electromagnetic variable disturbances. Variable disturbances are electromagnetic sizes, which in an electrical mechanism are able to cause unwanted influences. (Interference voltage, Interference current, Interference energy etc..) The further subdivision shows, whether the variable disturbance is taken up radiated or led or delivered radiated or led. Achievement-referred variable disturbances or interference currents spread over mains or data lines and are emitted.
The achievement-referred breakdown sending and noise immunity against led interference energy are mainly with deep frequencies (f > 30 MHz) of importance. In the case of signals with higher frequencies (f < 30 MHz), due to the achievement lengths or case dimensions larger in the comparison to the wavelength, we get good results for radiation conditions by the electromagnetic field.
We measure the following standards in our EMV - measuringresounds in Emden
a) CISPR
b) ANSI
Measurements in the waveguide
With frequencies under 140 MHz the quality test of our ECO measuring technique absorber is no longer feasible in the free field. With the help of a waveguide arrangement free field conditions are copied here. The waveguide dimensions are adapted to the frequency range which can be examined. The send signal is produced by the signal generator and a network analyzer processes from the absorber and/or the metal plate reflected signal. By arranging couplers a distinction is made and backward-moving signal. The reflection absorption is calculated as relationship between the measurements with and without absorbers.